Bending-machine.



No. 659,163. Patented act. 2, I900. o. .1. BEAUDETT.

BENDING MACHINE.

(Application filed In. a, 1900.)

(No Model.)

T'vwensov Q\ ver 5 Beam (xiii;

w gme s se s NlTE STATES PATENT OFFICE.

' OLIVER J. BEAUDETT, OF PONTIAC, MICHIGAN.

BENDlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 659,163, dated October2, 1900.

Application filed March 5 1900. Serial No. 7,388- (No model.)

To all whom, it may concern.-

Be it known that I, OLIVER J. BEAUDETT, a citizen of the United States,residing at Pontiac, in the county of Oakland and State of Michigan,have invented certain new and useful Improvements in Bending-Machines,of which the following is a specification, reference being had thereinto the accompanying drawings.

The invention has reference to machines for bending iron rods or bars,and relates particularly to a machine of this type especially designedfor forming corner-irons for wagon or carriage bodies.

The invention consists in the novel construction of the machine wherebythe bending of the iron may be more readily and quickly effected and inthe peculiar construction, arrangement, and combination of the variousparts thereof, as will be more fully hereinafter described and shown.

In the drawings, Figure 1 is a sectional perspective View of themachine. Fig. 2 is a plan view of the Work-supporting members and theactuating mechanism for the movable member. Fig. 3 is a section throughthe machine on line 00 00, Fig. 1; and Fig. 4c'is a perspective view ofthe corner-iron.

The reference-letter A designates a supporting-frame, upon which ismounted a bed B, preferably a semicircular plate, and upon this bed isarranged the work-holder C.

In construction the work-holder is formed in two sections or members Dand E, the section D being preferably fixed to the bed and the member Emounted upon the bed for reciprocatory movement in angular relation toand in alinement with the fixed member D.

The work-supporting member D consists, essentially, of an arm having agroove a formed in its upper face and extending its entire length. Z)designates a stop in the form of an iron rod arranged within a part ofthe groovea and secured to the arm by means of a clamp c. The member Ecomprises a similar arm having a similar groove formed therein andprovided with a stop 01 and securing-clamp e, as plainly shown in Fig.l. The movable member thus described is pivoted at its meeting end bymeans of a pinf to the bed and is provided upon its rear edge with a lugg, having one or more apertures, such as it, formed therein. In is astop against which the member E strikes when its position in alinementwith the complementary member has been attained.

Journaled in the frame in any suitable manner for continuous rotarymovement is a disk-crank F, and G designates a connectingbar whichconnects the crank with the movable member E. The connecting-rod G ispivoted at one end, as shown, to the lug upon the movable member bymeans of a pin f and has a slotz' formed in its opposite end, in whichthe pinj upon the crank engages.

In operation the bar or rod that is to be bent or formed is placedwithin the grooves in the movable and complementary supporting membersand is held from end wise movement therein by means of the stopsreferred to. Rotary motion being imparted to the disk-crank the movablemember E is moved into angular relation, preferably at right angles tothe member D, through the agency of the connecting-rod G and issubsequently withdrawn into alinement with the complementary member, themovement of the movable member into and out of alinement with thecomplementary member constituting a complete reciprocation.

In order that the bending may be more perfeetly effected, I employ aclamping mechanism H for holding. the bar that is to be bent in thework-holder. The clamping mechanism may be of any approved type; but Ipreferably employ a construction of mechanism, as shown, consisting of aclamping-plate I, carried at one end of a lever J, fulcrnmed in abracket K upon the bed-plate, a foot-treadle L and a rod M connectingthe lever with the treadle. During the operation of bending the operatorby the movement of the treadle causes the clamping-plate to bear againstthe work and hold the same securely in place while the bending is beingeffected. It will be obvious from the description of the mechanism asthus set forth that by employing a lost-motion connection such asdescribed between the disk-crank and the movable member the latter willremain at rest for a period of time when in a position at right anglesto its complementary or fixed member and when ICO in alinement with saidmember, thus allowing time for the withdrawal and insertion of the work.

In practice it is not essential that the movable member should remain inan angular position in order to withdraw the work. On the other hand,however, it is extremely desirable that the members should remain inalinement for as long a period as possible in order that the work may beproperly placed Within the work holders. I have therefore provided meanswhereby the period of rest of the movable member will occur only whenthe said member is in alinement with its complementary member and havealso arranged the partsin such manner as will permit the movable memberbeing at rest during one-half of the period of the rotation of thecrank. The means I preferably employ consist, essentially, of a spiralspring 0, attached at one end to a pin ct upon the movable member and atits opposite end to an upright P upon the supporting-frame.

In Fig. 2 I have shown in dotted lines the position of theconnecting-rod and crank-pin at the time when the bending is to beefiected, the disk-crank being adapted to move in the direction of thearrow. During the movement of the crank from the point a to the point a(shown in dotted and full lines in Fig. 2) the movable member is movedinto augular relation with the complementary member. Upon the nextquarter movement of the crank from the point last referred to to thepoint a the reciprocation of the movable member is completed. During thesecond half of the complete rotation of the disk the crank-pin travelsback and forth in the slot in the connecting-bar G and the movablemember is at rest, thus allowing sufficient time to insert the work.

IVhile I have shown the preferred construction of machine, I do notdesire to be limited to the exact structure, as various changes couldreadily be made without in any manner departing from the spirit of myinvention.

What I claim as my invention is I. In a bending-machine, the combinationwith a support, a work-holder thereon comprising a movablework-supporting member and a complementary member, the movable memberbeing mounted for reciprocatory movement into angular relation to andalinement with the complementary member, a continuously-operatingdevice, and connections between said device and the movable memberwhereby the latter is intermittently reciprocated in constantsuccession.

2. In a bending-machine, the combination with a support, a work-holderthereon comprising a movable work-supporting member and a complementarymember, the movable member being mounted for reciprocatory movement intoangular relation to and in alinement with the complementary member, acontinuously-rotating device connected to and adapted to reciprocate themovable member in constant succession, and means for maintainingthemembersin alinementduring a portion of each period of revolution of saidrotating device.

3. In a bending-machine, the combination with a support, a work-holderthereon comprising a movable work-supporting member and a complementarymember, the movable member being mounted for reciprocatory movement intoangular relation to and in alinement with the complementary member, acontinuously-rotating crank connected to and adapted to reciprocate themovable member in constant succession, and means for maintaining themembers in alinement during substantially one-half of each period ofrotation of the crank.

4. In a bending-machine, the combination with a support, a work-holdercomprising a movable work-supporting member and a complementary member,the movable member being mounted for reciprocatory movement into angularrelation to and alinement with the complementary member, a crank adaptedto be continuously rotated, and a lost-motion connection between thecrank and movable member.

5. In a bending-machine, the combination with a support, a work-holderthereon comprising a movable work-supporting member and a complementarymember, the movable member being mounted for reciprocatory movement intoangular relation to and alinement with the complementary member, a crankadapted to be continuously rotated, a lost-motion connection between thecrank and movable member, and a spring acting upon the movable member tomove the latter in alinement with the complementary member.

6. In a bending-machine, the combination with a support, a work-holderthereon comprising a movable work-supporting member, and a complementarymember, the movable member being mounted for reciprocatory movement intoangular relation to and alinement with the complementary member, aclamping device for holding the work within the holder, and acontinuously-operating device for reciprocating intermittently themovable member.

In testimony whereof I aflix my signature in presence of two witnesses.

OLIVER J. BEAUDETT.

